Form nouns from the following verbs.

Match the words in the right column with their synonyms in the left one.

Match the words in A with the words in B to form collocations.

Choose the most suitable word or word-combination.

1. Spread correction/ travel time/ plotting is time required for a seismic wave to travel from the source to storage medium/ sonar/ receptor.

2. Conclusions on presence or absence of hydrocarbons are usually made on the basis of data from impedance/ terrain/ reflection profiles.

3. In reflection method the energy initially propagates/ outputs/ plots downward and at some point times/ encounters / transmits a boundary which reflects it back.

4. In choosing a mean/ transition zone/ source array for a particular storage medium/ acquisition project/impedance one must consider a lot of factors.

5. Seismic data sets/ frequency output/ terrain may help to measure depth of source rock which is needed for construction of highways and big buildings.

6. The eruption of mount St. Helen’s produced a great propagation/ impact/ echolocation on the surrounding environment.

7. The equation contains a number of timing/ variables/ media.

8. The natural gas production rates increased by spread correction/ by incidence/ exponentially as enhanced oil recovery techniques were applied.

9. Seismic waves have lower velocity in solid storage medium/ medium /source array.

10. Tuned air gun array/ transition zone/ frequency output is one of the primary environments for seismic exploration.

Make up sentences, add words if necessary.

1. use/ interpret/ to map/ seismic/ structural/ technology/ maps/ geophysicists/ to.

2. the/ hydrophones/ used/ to/ record/ reflected/ are/ waves/ energy/ geophones/ and.

3. storage/ explosive/ environmental concerns/ are/ issues/ non geophysical/ terrain/ explosive use/ and.

4. reduce/ unsuccessful wells/ seismic/ the/ may/ survey/ number/ of.

5. average/ for/ absolute depth/ we/ the/ velocity/ need/ to know/ determination.

Reconstruct the order of operations that are performed in seismic survey.

___ The reflected signals are output onto a storage medium.

___ Different rock layers within the Earth’s crust reflect back the energy.

___ The recorded data are processed with special software.

___ Hydrophones and geophones record the reflected energy waves over a predetermined set of time.

___ These profiles or data sets are then interpreted for possible hydrocarbon reserves.

___ Sound energy waves are sent into the ground by means of dynamite or Vibroseis.

___ As a result of data analysis seismic profiles are produced.

Date: 2016-01-14; view: 1379